package com.sky.controller.user;

import com.sky.constant.StatusConstant;
import com.sky.entity.Dish;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

/**
 * @version 1.0.0
 * @program:sky-take-out
 * @author: CaoYuWei
 * @create:2023-02-12 18:37:00
 **/
@RestController("userDishController")
@RequestMapping("/user/dish")
@Slf4j
@Api(tags = "C端-菜品浏览接口")
public class DishController {
    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;

    @GetMapping("/list")
    @ApiOperation("根据id查询菜品")
    public Result<List<DishVO>> list(Long categoryId) {
        String key = "dish_" + categoryId;//构造redis中的key ，规则：dish_分类id
        //查询redis中是否存在菜品数据
        List<DishVO> list = (List<DishVO>) redisTemplate.opsForValue().get(key);
        if(list != null && list.size()>0){
            return Result.success(list);//如果存在就返回不用查询数据库
        }
        Dish dish = new Dish();
        dish.setCategoryId(categoryId);
        dish.setStatus(StatusConstant.ENABLE);//查询起售中的菜品
        list = dishService.listWithFlavor(dish);//如果不存在，就查询数据库，再将查询到的数据存入redis中
        redisTemplate.opsForValue().set(key,list);
        return Result.success(list);
    }
}